drop db rails code example

Example 1: drop rails all db

rake db:drop:all
rails db:drop:all

Example 2: rails reset database

rails db:reset 
// drop database and create/migrate all in one

Example 3: rails destroy something from db

user.destroy
User.find(15).destroy
User.destroy(15)
User.where(age: 20).destroy_all
User.destroy_all(age: 20)